David,
Thanks for the answer. I had an older car once like that and couldn't hardly get to the back of the speedometer at all so I just took a universal cable which back then didn't cost hardly anything and cut it into a short piece which I put the driven gear on and then stuck it into the transmission to test my gear in there. Of course in my case it was on the speedometer end and I worked two days getting that darn thing out. I have a shop manual on these transmissions and a CD that shows how to tear them down and where every piece goes, but I am not at all mechanically inclined and would take mine to a transmission shop before I took it all to pieces. I can't even look at all of those pages of exploded pictures and tell which gear goes where and some springs have to be held in place and on and on.
Ron